RU2140325C1 - Grain grinding apparatus - Google Patents

Abstract

FIELD: equipment for mechanized processing of grain to produce mixed feeds in individual and collective farms. SUBSTANCE: apparatus has framework, hopper, grinder, screen and baffle. Framework is formed as plate with grain discharge window and grinder shaft receiving opening. Grinder has high rotational speed electric engine mounted on frame and having shaft extending through frame, and plate symmetrically fixed on shaft. Plane of rotation of peripheral impact part of plate is extending below grain discharge window. Screen is made detachable and is fixed under grinder. Baffle is secured along screen perimeter with radial space between them. Apparatus may be attached to any container available, for instance to ground product collector, and fixed to it by movable stops-retainers. EFFECT: increased efficiency, reduced power consumption and decreased weight. 4 cl, 3 dwg, 1 tbl

Description

 A device for grinding grain refers to apparatus for processing feed grain into mixed feeds and can be used as a means of mechanizing the process of crushing grain in individual and farm enterprises.

 Various types of mills and crushers are known, including for crushing grain and grain waste into animal feed: millstones, disk, hammer, rod, cone, rotor.

 The device for processing grain according to the application N 93040002, 1993, IPC B 02 B 3/02, Russia contains a number of abrasive disks, a housing, a grain feed tray, a drive and a sieve.

 The mill for grinding grain and other agricultural products contains a housing with a lid, a millstone, a loading mechanism in the form of a flexible screw (Russia, application N 93021694/13 of 04/26/1993, IPC B 02 C 7/06).

Table grinder for grinding all types of grain, manufactured by the Zlatoust-36 instrument-making plant, MKD-F-1 microcrusher manufactured by NPO Neris in Vilnius, and also MD-1 mini-crusher manufactured by AP Neftemash in Izhevsk contain a case, a bunker , rotor, electric motor, control device (see. Technological lines and equipment for the preparation of feed in households. Catalog. M "Informgrotech, 1993)
A device for grinding grain was selected as a prototype, Russia, application N 93045812/13 of 09/27/93, IPC 6 B 02 C 9/04, containing a bed with a grain receiving hopper attached to it with an exit window, a sieve and a grinder.

 A disadvantage of the known structures for grinding grain, including the prototype, is the high energy consumption and low specific productivity, characterized by the ratio of productivity to energy consumption, as well as the large weight of the devices and the large labor costs for manufacturing.

 The aim of the invention is to provide a simple device for grinding grain in individual and farm enterprises, which has high productivity, low power consumption, low weight and does not require high costs for its manufacture.

 This goal is achieved in that in a device containing a frame with a loading hopper fixed to it, having an exit window, a sieve and a grinder, the frame is made in the form of a plate with a grain exit window coinciding with the exit window of the hopper and an opening for the grinder shaft, which is made in the form of a vertically mounted and equipped with a sealing unit high-speed electric motor and symmetrically mounted on its shaft, passed through the bed, plates, the plane of rotation of the peripheral shock of which Odita under window for grain yield, and the sieve is removable and mounted under the chopper.

In addition, the window area for the exit of grain is made equal to 300-600 mm ² .

 In addition, a reflector in the form of a ring is fixed along the perimeter of the sieve with a radial clearance.

 In addition, the plate is made of stops-clamps for containers - a collection of crushed grain processing product in the form of mobile brackets with fixing parts and a scale of container sizes.

 The presence of distinctive features, compared with the prototype, confirms the novelty of the claimed device.

 Due to the fact that among the known technical solutions there are no signs similar to those distinguishing the claimed solution from the prototype, the proposed device has an inventive step.

Distinctive essential features of the proposed device are:
1. A new set of structural elements, which is expressed by the presence of:
- bed, made in the form of a plate having a window for the exit of grain,
hole for the grinder shaft and grooves,
- a chopper in the form of a high-speed electric motor and a plate fixed to its shaft;
- motor sealing unit;
- sieve, which is made removable;
- a reflector made in the form of a ring,
- stops-clamps for packaging containers of crushed grain processing product in the form of mobile brackets with fixing parts;
- scale sizes of containers.

2. A new mutual arrangement of structural elements, which is expressed in the fact that:
- the electric motor is mounted and mounted vertically;
- the motor shaft is passed through the plate;
- the chopper plate is mounted symmetrically on the motor shaft,
and the plane of rotation of the peripheral shock part passes under the window for the exit of grain,
- the sieve is mounted under the grinder,
- the reflector is fixed around the perimeter of the sieve with a radial clearance.

3. New window sizes for grain exit from the hopper, namely, the window area is 300-600 mm ² .

 The combination of known and distinctive essential features ensures the achievement of the goal of the invention, because it allows you to create a simple, reliable, high-performance and economical machine for processing grain in the conditions of individual farming.

 In FIG. 1 shows a General view of the device for processing grain, figure 2 - section aa in FIG. 1, in FIG. 3 is a view B in FIG. 1.

 A device for processing grain includes a bed 1, on which a loading hopper 2, a chopper 3, a sieve 4, a reflector 5 are fixed.

 The bed 1 is made in the form of a plate with a window 6, a hole 7, grooves 8 and a scale of 9 sizes of containers.

 The hopper 2 includes a housing with a bell 10 for loading grain and a window 11 for the exit of grain, and the window 11 of the hopper 2 coincides with the window 6 made in the frame 1.

 The grinder 3 consists of a high-speed electric motor 12, the shaft 13 of which is passed through the bed 7 through the bed 1, and the plate 14 symmetrically mounted on the shaft 13, the plane of rotation of the peripheral impact part 15 of which passes under the window 6 for grain exit. From the location of the hopper 2, the electric motor 12 is closed by a casing 17, a control panel 18 is mounted here to turn on the electric motor 12.

 The sieve 4 is made removable in a cylindrical shape with a bottom 19 and mounted on the frame 1 with screws 20 and nuts 21. The bottom, flat, part and side, cylindrical, part of the sieve 4 can be made of solid metal or food plastic with holes, and from the grid. Around the perimeter of the sieve 4 with a gap δ is mounted a reflector 5 made in the form of a ring.

 Before carrying out work on grinding grain, the device is installed on any improvised packaging container 22 of crushed product 23, which is then fixed with stoppers made, for example, in the form of mobile brackets 24 and nuts 25 installed on their threaded parts. In the installation area of brackets 24 on bed 1 made a scale of 9 sizes of containers.

A device for grinding grain as follows. A power cable 26 with a plug 27 is connected to the power network. The Start button of the control panel 18 turns on the electric motor 12, the shaft 13 of which untwists the plate 14 to high speed. Through the bell 10, grain 29 is poured into the hopper 2, which through windows 6 and 11 wakes up in the zone of the plane of rotation of the peripheral impact part 15 of the plate 14, where it collapses when it collides with it. The crushed product 23 through holes in the lateral cylindrical part of the sieve 4, reflected from the walls of the reflector 5 and through the radial clearance δ ₁ between the end part 15 and the lateral cylindrical part of the sieve 4 and in the bottom 19, enters the container 22.

 Currently, technical documentation has been developed, a prototype of the inventive device for grinding grain has been manufactured and tested, in which an electric motor with a power of 370 W with a speed of 8000 rpm is used. In this device, the grain 29 collides with the impact part 15 of the plate 14 several times, since under the window 11 for grain to exit the hopper 2, it passes through every 0.0038 s. The productivity of the device is 150 kg / h.

 The table shows the technical characteristics of the prototype of the tested device in comparison with known analogues.

Notes to the table:
1. Machines, equipment, instruments and automation for the processing industries of the agro-industrial complex. Volume 4. Part Two. Mill elevator, cereal and animal feed industry. Catalog, Moscow, 1990, p. 251, OKP 51.4411.0003. 2. Equipment for small farms and farms. Catalog, M., Informationgrotech, 1991, pp. 35, 36. 3. Production lines and equipment for the preparation of feed in farms. Catalog, M., Informgrotech, 1993, p. 45, 48, 49.

 As follows from the table, the technical characteristic "specific productivity" of the claimed device for grinding grain is 22% higher than known analogues.

 Currently, the applicant is working on the deployment of mass production of the claimed device.

Claims (4)

 1. A device for grinding grain, comprising a bed with a loading hopper fixed to it, having a window for grain exit, a sieve and a grinder, characterized in that the bed is made in the form of a plate with a window for grain exit matching the window for grain exit from the hopper, and a hole for the shaft of the grinder, which is made in the form of a vertically mounted and equipped with a sealing unit high-speed electric motor and symmetrically mounted on its shaft, passed through the bed, plates, the plane of rotation of the peripheral the shock part of which passes under the window for the exit of grain, and the sieve is removable and mounted under the grinder. 2. The device according to claim 1, characterized in that the area of the window for the exit of grain is made equal to 300-600 mm ² .  3. The device according to claim 1, characterized in that a reflector made in the form of a ring is fixed along the perimeter of the sieve with a radial clearance.  4. The device according to claim 1, characterized in that on the frame there are made stop-clamps for containers-collection of grain processing products in the form of mobile brackets with fixing parts and a scale of container sizes.

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